The mass of the sun takes up the majority of the solar
system. Our sun is MASSIVE! In fact, its mass is around 330,000 times that of Earth
and accounts for 99.86% of the total mass in our solar system.
The Sun and the Moon are not the same size from Earth, both
the Sun and the Moon look about same size. This is because, the Moon is 400 times
smaller than the Sun, but also 400 times closer to Earth.
Space fact: Space is completely silent.
Sound waves need a medium to travel through. Since there is no atmosphere in the
vacuum of space, the realm between stars will always be eerily silent.
That said, worlds with atmospheres and air pressure do allow sound to travel, hence
why there's plenty of noise on Earth and likely other planets as well.